I would have liked to see Brock continue fighting mma. There are only a handful of HW's that could beat him.
I actually met Brock recently. He was in Calgary for a promotional event and stopped by our office. Super nice guy.
The reality though is Brock doesn't love fighting. It was a job for him and once he made some $$$ and realized he would only be the 4th or 5th best HW his interest was gone.
I won't be surprised though if we see Brock come back for a big $$$ fight at some point. I also won't be surprised if we never see Brock in the octagon again.
It is what it is.